湖南大学学报（自然科学版）2016，Vol.43Issue(5)：113-119,7.
边坡稳定可靠度分析的新型四阶矩法∗
A New Method of Four Order Moments for Reliability Analysis on Slope Stability
摘要
Abstract
In this study,a new four-order moment method for reliability analysis of slope stability was proposed.The reliability analysis of slope stability was conducted by the combination of the uniform design method,the RBF neural network technique,and the maximum entropy principle.The network training sample space of cohesion and internal friction angle was firstly determined by the uniform design method, and the slope safety factor related to the samples was obtained by the strength reduction method using the finite element analysis.The RBF neural network was trained by the samples and their corresponding safety factors.The safety factors of the slope satisfying the statistical requirement were obtained by the well-trained neural network,and the first four-order moments of the slope safety factor were calculated.Fur-thermore,the approximate expression of probability density function of the slope safety factor,the slope failure probability,and the corresponding reliability index were investigated by the maximum entropy prin-ciple.Compared with the results from Monte Carlo method,the proposed method shows high precision.关键词
边坡稳定/均匀设计法/径向基神经网络/最大熵/可靠度/四阶矩Key words
slope stability/uniform design method/RBF neural network/maximum entropy/reliabili-ty/four order moments分类
通用工业技术引用本文复制引用
周芬,郭奥飞,杜运兴..边坡稳定可靠度分析的新型四阶矩法∗[J].湖南大学学报（自然科学版）,2016,43(5):113-119,7.基金项目
国家自然科学基金资助项目(51108174,51378199),National Natural Science Foundation of China(51108174,51378199) （51108174,51378199）
